INTERMEDIATE MICRO II questions

i uploaded the questions in a file and here is some instructions about it:

Please write legibly and show ALL of your work and all of your calculations. If you draw any diagrams or graphs you must clearly identify ALL parts of the graph (e.g., lines, curves, points of intersection, changes in price or quantity, shifts in demand and supply, what is measured on the axes, etc.). You may lose ALLpossible points if you do not clearly demonstrate how you arrived at your answer.